72533103766651 has 16 divisors (see below), whose sum is σ = 80264040127488. Its totient is φ = 64992866011200.

The previous prime is 72533103766639. The next prime is 72533103766661. The reversal of 72533103766651 is 15666730133527.

It is a cyclic number.

It is not a de Polignac number, because 72533103766651 - 2¹⁷ = 72533103635579 is a prime.

It is a super-2 number, since 2×72533103766651² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 72533103766592 and 72533103766601.

It is not an unprimeable number, because it can be changed into a prime (72533103766661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28676691 + ... + 31103356.

It is an arithmetic number, because the mean of its divisors is an integer number (5016502507968).

Almost surely, 2^{72533103766651} is an apocalyptic number.

72533103766651 is a deficient number, since it is larger than the sum of its proper divisors (7730936360837).

72533103766651 is a wasteful number, since it uses less digits than its factorization.

72533103766651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59781642.

The product of its (nonzero) digits is 14288400, while the sum is 55.

The spelling of 72533103766651 in words is "seventy-two trillion, five hundred thirty-three billion, one hundred three million, seven hundred sixty-six thousand, six hundred fifty-one".